68432493 has 4 divisors (see below), whose sum is σ = 91243328. Its totient is φ = 45621660.

The previous prime is 68432477. The next prime is 68432503. The reversal of 68432493 is 39423486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68432493 - 2⁴ = 68432477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68432473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11405413 + ... + 11405418.

It is an arithmetic number, because the mean of its divisors is an integer number (22810832).

Almost surely, 2^68432493 is an apocalyptic number.

It is an amenable number.

68432493 is a deficient number, since it is larger than the sum of its proper divisors (22810835).

68432493 is a wasteful number, since it uses less digits than its factorization.

68432493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22810834.

The product of its digits is 124416, while the sum is 39.

The square root of 68432493 is about 8272.3934263307. The cubic root of 68432493 is about 409.0290189695.

The spelling of 68432493 in words is "sixty-eight million, four hundred thirty-two thousand, four hundred ninety-three".